The warm transparency of Hunters HD Gold® was designed to offer contrast and clarity to the viewer by bringing all colors into the eye's most comfortable range of light. This gives the shooter 30 minutes more visible light in the morning and the evening. The medical dye helps with night blindness, macular degeneration and SAD (Seasonal Affective Disorder). Hunters HD Gold blocks 100% UVA, UVB and Blue Light. Hunters HD Gold® is healthy for your eyes.
Photochromic lenses are light knowledgeable optical lenses that darken on exposure to specific types of light of sufficient intensity, most commonly ultraviolet (UV) radiation. An added benefit of photochromic lenses is that they shield your eyes from 100 percent of the sun's harmful UVA and UVB rays. They typically take around 30 seconds to fully darken and approx 2 - 5 minutes to return to a golden state. They Change So You Don't Have To™
In 2001, PPG Industries (Pittsburgh, Penn.) introduced a rival lens material called Trivex®. Performance properties include crisp, clear vision, lighweight comfort with strength and protection. Trivex® are thin and more impact-resistant than regular plastic or polycarbonate with 43% more light transmission. Trivex® was originally developed for the military, as visual armor